<DataGrid.Columns>
                <DataGridTextColumn Header="Name" Binding="{Binding Path=Name}" MinWidth="380" />
                <DataGridTextColumn Header="UID"  Binding="{Binding Path=UID}" MinWidth="50" />
                <DataGridTextColumn Header="Data"  Binding="{Binding Path=Data}" MinWidth="80" />
            </DataGrid.Columns>

public class TMC
        {
            public string Name { get; set; }
            public string UID { get; set; }
            public string Data { get; set; }
            public string Selected { get; set; }
            public int Row { get; set; }
        }

 ObservableCollection<TMC> coll = new ObservableCollection<TMC>();

dataGrid1.ItemsSource = coll;